Simple solution: use an escrow. Not sure why you don't seem willing to (from what I've read).
I am the escrow. If they do not trust me then they can either take the 10 day option or apply next month, simple.
Ask the campaign owner to comment here please. We want to hear it from him.
Its a locked thread so I can not quote
https://bitcointalk.org/index.php?topic=874528.msg9670195#msg9670195Does the owner of the cliud mining site follow this thread? If not, tell him it is because of Carra, that I am not investing a single penny in the site.
Actually I can guarantee, not 1 btc will be invested by anyone.